| 轴承失效的原因 |
| 添加时间：2017/6/14 15:11:34 浏览次数： |
| 轴承失效的原因 The cause of failure of the bearing 在球轴承的失效中约有40%是由灰尘、脏物、碎屑的污染以及腐蚀造成的。污染通常是由不正确的使用和不良的使用环境造成的，它还会引起扭矩和噪声的问题。由环境和污染所产生的轴承失效是可以预防的，而且通过简单的肉眼观察是可以确定产生这类失效的原因。 About 40 percent of the failure of ball bearings is caused by dust, dirt, debris and corrosion. Pollution is usually caused by incorrect use and poor use of the environment. It also causes torque and noise. The failure of bearings produced by environment and pollution can be prevented, and the cause of such failure can be determined by simple visual observation. 通过失效后的分析可以得知对已经失效的或将要失效的轴承应该在哪些方面进行查看。弄清诸如剥蚀和疲劳破坏一类失效的机理，有助于消除问题的根源。 Through the analysis of the failure, you can find out which aspects of the bearings that have been invalidated or are going to fail. Understanding the mechanisms of failure such as erosion and fatigue can help eliminate the root of the problem. 只要使用和安装合理，轴承的剥蚀是容易避免的。剥蚀的特征是在轴承圈滚道圈滚道上留有由冲击载荷或不正确的安装产生的压痕。剥蚀通常是在载荷超过材料屈服极限时发生的。如果安装不正确从而使某一载荷横穿轴承圈也会产生剥蚀。轴承圈上的压坑还会产生噪声、振动和附加扭矩。 As long as the use and installation is reasonable, the erosion of the bearings is easy to avoid. The denudation is characterized by the impression of a shock load or incorrect installation on the rolling path of the bearing ring. Erosion usually occurs when the load exceeds the material yield limit. If the installation is incorrect, an erosion can also be caused by a load running through the bearing ring. The pit on the bearing circle also produces noise, vibration and additional torque. 类似的一种缺陷是当轴承不旋转时山于滚珠在轴承圈间振动而产生的椭圆形压痕。这种破坏称为低荷振蚀。这种破坏在运输中的设备和不工作时仍振动的设备中都会产生。此外，低荷振蚀产生的碎屑的作用就象脐粒一样，会进一步损害轴承。与剥蚀不同，低荷振蚀的特征通常是由于微振必损腐蚀在润滑剂中会产生淡红色。 A similar defect is the oval-shaped indentation that occurs when the bearings are not rotated and the hills are vibrating between the bearings. This destruction is known as low-holed vibration. This is the type of equipment that can be damaged in transit and when it is not working. In addition, the detritus of the low-holed vibration is like umbilicus, which further damages the bearings. Unlike denudation, the characteristic of low-holed vibration is usually caused by a microvibration that is corroded in the lubricant and produces a reddish color. |
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